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        <p>Library Version 11.2.5.3</p>
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		Building Berkeley DB for VxWorks
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            <h2 class="title" style="clear: both"><a id="build_vxworks_notes"></a>VxWorks notes</h2>
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            <span class="sect2">
              <a href="build_vxworks_notes.html#idp736192">Building and Running the Demo Program</a>
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            <span class="sect2">
              <a href="build_vxworks_notes.html#idp759688">Building and Running the Utility Programs</a>
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              <a href="build_vxworks_notes.html#idp762736">Support for Replication Manager</a>
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      <p>Berkeley DB currently disallows the <a href="../api_reference/C/dbopen.html#open_DB_TRUNCATE" class="olink">DB_TRUNCATE</a> flag to the
<a href="../api_reference/C/dbopen.html" class="olink">DB-&gt;open()</a> method on VxWorks because the operations this flag represents
are not fully supported under VxWorks.</p>
      <p>The <a href="../api_reference/C/dbsync.html" class="olink">DB-&gt;sync()</a> method is implemented using an ioctl call into the file
system driver with the FIOSYNC command.  Most, but not all file system
drivers support this call.  Berkeley DB requires the use of a file system
that supports FIOSYNC.</p>
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              <h3 class="title"><a id="idp736192"></a>Building and Running the Demo Program</h3>
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        <p>The demo program should be built in a manner very similar to building
Berkeley DB.  If you want different or additional BSP build specifications you
should add them by following the directions indicated in
<a class="xref" href="build_vxworks.html#build_vxworks_intro6x" title="Building for VxWorks 6.x">Building for VxWorks 6.x</a>.</p>
        <p>The demo program can be downloaded and run by calling the entry function
<span class="bold"><strong>dbdemo</strong></span> with the pathname of a database to use.  The demo
program will ask for some input keys.  It creates a database and adds
those keys into the database, using the reverse of the key as the data
value.  When complete you can either enter EOF (control-D) or
<span class="bold"><strong>quit</strong></span> and the demo program will display all of the key/data
items in the database.</p>
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              <h3 class="title"><a id="idp759688"></a>Building and Running the Utility Programs</h3>
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        <p>The Berkeley DB utilities can be downloaded and run by calling the function equivalent to the utility's name.  The utility functions take a string containing all the supported arguments.  The program will then decompose that string into a traditional argc/argv used internally.  For example, to execute <a href="../api_reference/C/db_stat.html" class="olink">db_stat</a> utility on a database within an environment you would execute the following from the windsh prompt.  Obviously you would change the pathname and database name to reflect
your system.</p>
        <pre class="programlisting">&gt; db_stat "-h /tmp/myenvhome -d mydatabase.db"</pre>
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              <h3 class="title"><a id="idp762736"></a>Support for Replication Manager</h3>
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        <p>The Berkeley DB Replication Manager component is available on Vxworks 6.x because it provides support for TCP/IP sockets and POSIX 1003.1
		style networking and threads. You must build Berkley DB for Vxworks using the command line. Prior to building Berkeley DB, ensure you set appropriate values for the variables 
		specified in Step 1 of <a class="xref" href="build_vxworks.html#build_vxworks_intro6x" title="Building for VxWorks 6.x">Building for VxWorks 6.x</a>. To use Berkeley DB Replication Manager, <code class="literal">netLib</code> and <code class="literal">ioLib</code> must be present in the Vxworks image.
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